//
//  MainTabBar.swift
//  Sina Weibo
//
//  Created by 斩尘 on 15/10/3.
//  Copyright © 2015年 陈帅. All rights reserved.
//

import UIKit

class MainTabBar: UITabBar {


    
    override func layoutSubviews() {
        super.layoutSubviews()
        
        var index:CGFloat = 0
        
        let w = UIScreen.mainScreen().bounds.size.width/5
        
        let h = self.bounds.height
        
        let frame = CGRectMake(0, 0, w, h)
        
        for view in subviews {
        
            if view is UIControl && !(view is UIButton){
            
                view.frame = CGRectOffset(frame, index*w, 0)
                
                if index == 1 {
                
                    index++
                }
                index++
            }
            
        }
        composeButton.frame = CGRectOffset(frame, 2*w, 0)
        
        
    }
    
    
    lazy var composeButton : UIButton = {
    
        let btn = UIButton(type: UIButtonType.Custom)
        
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: UIControlState.Normal)
        
        btn.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: UIControlState.Normal)
        
        btn.setImage(UIImage(named:"tabbar_compose_icon_add_highlighted"), forState: UIControlState.Highlighted)
        
        btn.setBackgroundImage(UIImage(named:  "tabbar_compose_button_highlighted"), forState: UIControlState.Highlighted)
        
        self.addSubview(btn)
        return btn
    }()
    
}
